Squamous cell carcinoma complicating chronic osteomyelitis in a toe: a case report and review of the literature.

Squamous cell carcinoma arising from chronic osteomyelitis is uncommon. Although the majority of cases occur in the lower extremity, incidence in the foot is relatively rare, and in the toe, exceptional. This report illustrates a particularly unusual incidence of squamous cell carcinoma complicating chronic osteomyelitis of the hallux. Guidelines for early diagnosis, recommendations for treatment, and prognostic data are included.